//paint.c
#include <stdio.h>
#define COVERAGE 200
int main(void)
{
    int sq_feet;
    int cans;
    printf("Enter number of square feet to be painted: \n");
    while(scanf("%d", &sq_feet) == 1 )
    {
        cans = sq_feet / COVERAGE;
        cans += (sq_feet % COVERAGE == 0) ? 0 : 1;
        printf("You need %d %s of paint.\n", cans, cans == 1 ? "can" : "cans");
        printf("Enter next values (q to quit): \n");
    }
    getchar();
    return 0;
}
